t is reported that millions of people are suffering from some kind of hearing impairment [1]. The number is climbing due to the increasing portion of elderly people in the world's population. While hearing loss is usually caused by permanent mechanical damage to the ear, there is no medicine to reverse it, and surgery offers little help. Thus, electronic hearing aids or pros-thetics are, so far...

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[51 Bondwire inductors 0.3 3 5 * 1.2 0 . 7 2 ~ 0.32 5.1 7 4.7 c -6 4 9 3 54 Abstrncf A CMOS distributed amplifier (DA) covering 0.6 to 22 GHz is presented in this paper. Cascode gain cells and m-derived matching sections are used to enhance the gain and bandwidth performance. The DA chip achieves measured gain of 7.3 f 0.8 dB with chip area of 0.9 x 1.5 mm’ including testing pads. The amplifier...

To combine the benefits and compensate for the drawbacks of different optical amplifier types, a hybrid amplifier can be composed. The authors consider two most frequently used hybrid amplifiers that can provide better performance: a semiconductor optical amplifier (SOA), and an erbium doped fiber amplifier (EDFA), both in combination with a distributed Raman amplifier (DRA). To compare perform...